Kung Fu Panda: Secrets of the Masters

Kung Fu Panda Secrets of the Masters is a 2011 animated short film from DreamWorks Animation. It was released on December 13, 2011 as a special feature attached to the Kung Fu PandaDVD and Bluray. The short consists mostly of a traditional animationminutes, which was created by Duncan Studio. It uncovers the backgrounds of the masters of Gongmen City Master Thundering Rhino, Master Storming Ox, and Master Croc.

Under the pretense of an emergency in the dead of night, Master Po Jack Black leads Master Tigress Angelina Jolie and Master Mantis Seth Rogen into breaking into the new Masters Council exhibit in tribute of Masters Thundering Rhino, Ox, and Croc. Even though Tigress and Mantis are annoyed at the deception, Po engages their interest in the story of the trio of masters first met.Long ago in the city of Jinzhao, where Kung Fu was practiced for the sport of street fighting, Rhino Paul Scheer, Ox Dennis Haysbert and Croc Tony Leondis were smalltime pit fighters who attracted the attention of Grand Master Oogway Randall Duk Kim, who, seeing their talent and focus, wished them to find something worthy to fight for. As the trio fought themselves to a standstill, two of the villainous Wu Sisters were freeing their leader and eldest sister Su Wu Sumalee Montano. To recapture them, Oogway persuades Rhino, Ox and Croc into helping him find the sisters at Hubei Volcano. However, to his disappointment, Oogway has to appeal to them with vague prospects of being put on a path to riches to get that cooperation. ........

Source: Wikipedia